Electronic correlations and Fermi liquid behavior of intermediate-band states in titanium-doped silicon
Strongly Correlated Electrons
2021-11-17 v2 Disordered Systems and Neural Networks
Abstract
We study the nature of the electronic states in the intermediate band formed by interstitial titanium in silicon. Our single-site description combines effects of electronic correlations, captured by dynamical mean-field theory, and disorder, modeled using the coherent potential approximation and the typical medium mean-field theory. For all studied concentrations an extended metallic state with a strongly depleted density of states at the Fermi level is obtained. The self-energy is characteristic to Fermi-liquids and for certain temperatures reveals the existence of coherent quasi-particles.
Keywords
Cite
@article{arxiv.2111.03387,
title = {Electronic correlations and Fermi liquid behavior of intermediate-band states in titanium-doped silicon},
author = {A. Östlin and L. Chioncel},
journal= {arXiv preprint arXiv:2111.03387},
year = {2021}
}
Comments
6 pages, 4 figures